Search results

France is the only country that practices pedigree selection of guinea fowl for meat production. The increasing risk of line extinction for sanitary or breeding failure reasons makes clear the need for an efficient method of reproductive cell cryopreservation in this species. However, an efficient...

The study aimed to evaluate the reproductive traits in poultry breeder with different weight ranges of two semi-heavy lineages. The experimental method was completely randomized design in factorial arrangement (3×2) with two factors: reproductive methods (artificialinsemination and natural mating) ...

To preserve chicken genetic materials like cryopreserved spermatozoa, various kinds of freezing agents like glycerol, dimethylsuloxide, dimethylformamide or dimethylacetamide have been used for rooster semen preparation. Recently, the usage of N-methylacetamide (MA) for Ogye rooster semen...

The use of methylacetamide (MA) as a cryoprotective agent for freezing Korean Native Black rooster Ogye semen was examined with artificialinsemination. The diluted Ogye semen with HS-1 was subjected for 2 step dilution method of cryopreservation in which the final concentration of MA was adjusted...

This book contains 19 chapters that discuss theoretical and applied andrology for domestic, zoo and wild animals. Topics include semen and its constituents; sperm production and harvest; determinants of sperm morphology; sperm preparation for fertilization; practical aspects of semen...

A method of freezing semen using N-methylacetamide (MA) as a cryoprotective agent was applied to Yakido, a chicken breed designated as a "Natural Monument" under the "Law for the Protection of Cultural Property" (Law No. 214, May 30, 1950) in Japan. Semen was collected from Yakido roosters, and...

This work focused on inexpensive methods of evaluation fowl sperm morphology, based on eosin-nigrosin smears, which can determine disorders in spermatogenesis and can be recommended for evaluating the fertilising potency and selecting males in flocks reproduced by artificialinsemination. Four fowl ...

Native chicken are economic importance to rural community in developing countries. Numbers of their genetic lines decline continuously, therefore conservation and maintaining diversity of their species are necessary works. The aim of this study was to assess a simple effective technique for...

Fowl semen was diluted with 2 different glutamate-based diluents with 8% glycerol and was frozen in pellets. When the semen was used for shallow, vaginal insemination using 180 × 106 spermatozoa per insemination dose, the overall egg fertility was 19.4% vs. 27.7% for deep, vaginal insemination of...